svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
ng_bluetooth(4)
NG_BLUETOOTH(4) BSD Kernel Interfaces Manual NG_BLUETOOTH(4)
NAME
ng_bluetooth — placeholder for global Bluetooth variables
SYNOPSIS
#include <sys/types.h>
#include <netgraph/bluetooth/include/ng_bluetooth.h>
DESCRIPTION
The ng_bluetooth module is a placeholder for global Bluetooth variables.
All Bluetooth variables can be examined and changed via sysctl(8).
Bluetooth Variables
Below is the description of default variables. Each Bluetooth module
might add its own variables to the tree.
net.bluetooth.version
A read-only integer variable that shows the current version of the
Bluetooth stack.
net.bluetooth.hci.command_timeout
A read-write integer variable that controls the Host Controller
Interface (HCI) command timeout (in seconds), i.e., how long the HCI
layer will wait for the Command_Complete or Command_Status event
from a Bluetooth device.
net.bluetooth.hci.connection_timeout
A read-write integer variable that controls the HCI connection time‐
out, i.e. how long the HCI layer will wait for the
Connection_Complete event. Normally this should not be required as
Bluetooth devices have connection timeout of their own and will send
event back. This timeout is required to ensure that no connection
will stall in case when the HCI transport layer is broken. Be care‐
ful when changing this variable. Make sure you understand what you
are doing.
net.bluetooth.hci.max_neighbor_age
A read-write integer variable that controls time-to-live (in sec‐
onds) for entries in the HCI neighbor cache. Every time a Bluetooth
device performs an Inquiry operation, the results will be put in
cache. Later when a Bluetooth device establishes a baseband connec‐
tion, it will try to find the matching entry in the cache and use
it. This might speed up establishment of the baseband connection.
net.bluetooth.l2cap.rtx_timeout
A read-write integer variable that controls the Link Layer Control
and Adaptation Protocol (L2CAP) Retransmission Timeout (RTX) (in
seconds). Every time the L2CAP layer submits a control command, the
RTX timeout is set. The value of the RTX timeout should be greater
or equal to the value of the HCI connection timeout. Be careful
when changing this variable. Make sure you understand what you are
doing.
net.bluetooth.l2cap.ertx_timeout
A read-write integer variable that controls the L2CAP Extended
Retransmission Timeout (ERTX) (in seconds). In some cases remote
peer may respond with PENDING status to the L2CAP control command.
In this case the L2CAP command timeout is reset to the ERTX timeout
value. The value of the ERTX timeout should be greater or equal to
the value of the RTX timeout. Be careful when changing this vari‐
able. Make sure you understand what you are doing.
SEE ALSO
ng_btsocket(4), ng_hci(4), ng_l2cap(4), sysctl(8)
HISTORY
The ng_bluetooth module was implemented in FreeBSD 5.0.
AUTHORS
Maksim Yevmenkin <m_evmenkin@yahoo.com>
BSD November 9, 2002 BSD